Highly advanced air craft silent, very fast , and im worried about my country

Getting ready to eat late dinner on a brisk night sitting on my trucks tailgate with a friend of mine twlking about whatever i cant remember now after being shocked as we were speaking to eachother we felt saw a glow in our perifereral vision a very bright ball of light roughly 10 feet by 8 feet maybe larger hovered only across the street from us ..

Silently we sat frozen murmering as my friend slowly reached for his phone to record it elevated slowly showing just a slight bit of its thin sharp although disk like shape some what sharp on the back like what bat man would drive shiny almost camouflaged as we began to record the ball of light shook as if it gained awareness of us.

It levetated silently about 20 more feet after it being only 20 feet in the air then shot straight up and across the night sky in two bursts leaving a small blue tail . When it stopped again it zig zagged slightly a purple beam sort of smokey looking appeared and disappeared taking th! e craft with it im deeplt concerned for my fellow people